Saint Anthony, perfect imitator of Jesus, who received from God the special power of restoring lost things, grant that I may find (mention your petition) which has been lost. As least restore to me peace and tranquility of mind, the loss of which has afflicted me even more than my material loss.

To this favor I ask another of you: that I may always remain in possession of the true good that is God. Let me rather lose all things than lose God, my supreme good. Let me never suffer the loss of my greatest treasure, eternal life with God. Amen.

Here’s another good prayer:

Wondrous Saint Anthony, glorious for the fame of your miracles, you had the happiness of receiving in your arms our blessed Lord as a little child. Obtain for me from His mercy this favor that I desire from the bottom of my heart: (mention your request)

Since you were so gracious to poor sinners, do not regard the lack of merit on the part of him who calls upon you, but consider the glory of God, which will by exalted once more through you, by the salvation of my soul and the granting of the petition that I now earnestly present to you.

As a pledge of my gratitude, I beg you to accept my promise to live henceforth more faithfully according to the teaching of the Gospel and to be devoted to the service of the poor whom you ever loved and still love so much. Bless this my resolution and obtain for me the grace to be faithful to it till death. Amen.